public class FillArc
extends Arc
{..., "fill-arc", x, y, width, height, startAngle, arcAngle...}
(x,y): top-left point of rectangle enclosing arc
width: width of rectangle enclosing arc
height: height of rectangle enclosing arc
angles in degrees
startAngle = 0: three O'Clock position
arcAngle positive: counter-clockwise rotation
arcAngle negative: clockwise rotation